The reversibility of sequential economic choices concerning production and consumption is addressed. A geometric approach to substitution effects and output/income effects is set forth in terms of vector fields on bundle space. By means of suitable fixing relations the 0-homogeneity of such...

Chapter 1. Introduction -- Chapter 2. Blockchain, decentralized consensus and trust -- Chapter 3. The basic mining game. -- Chapter 4. Higher level models -- Chapter 5. The future monetary system -- Chapter 6. Regulation -- Chapter 7. Conclusions.